Silver-Assisted Difunctionalization of Terminal Alkynes: Highly Regio- and Stereoselective Synthesis of Bromofluoroalkenes
作者:Yibiao Li、Xiaohang Liu、Deyun Ma、Bifu Liu、Huanfeng Jiang
DOI:10.1002/adsc.201200250
日期:2012.10.8
The difunctionalization of terminal alkynes was achieved with silver fluoride (AgF) and N-bromosuccinimide (NBS) as halogen sources. The presence of the halide moiety greatly enhances the reactivity of the vinyl fluoride compounds that can probably can be transformed into various products that are difficult or even impossible to obtain via direct fluorination. Meanwhile, the monofluoro<.>alkenes were
用
氟化银(AgF)和N-
溴琥珀
酰亚胺(
NBS)作为卤素源可实现末端
炔烃的双官能化。卤化物部分的存在极大地增强了
氟乙烯化合物的反应性,该
氟乙烯化合物很可能可以转化为通过直接
氟化难以或什至不可能获得的各种产物。同时,单
氟<>烯烃均轻便合成通过使用如AGF以良好产率
氟化剂缺电子CC三键的高度化疗和区域选择性
氟化。